Yealink T4 Firmware
To update to Fonality's firmware, flash the .200 file first then flash .2 last. Â It is important to flash in that order to gain full compatibility with Fonality's systems.
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To update to Fonality's firmware, flash the .200 file first then flash .2 last. Â It is important to flash in that order to gain full compatibility with Fonality's systems.
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